WO2006131140A1 - An electrical connector assembly for an airbag ignitor - Google Patents

An electrical connector assembly for an airbag ignitor Download PDF

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Publication number
WO2006131140A1
WO2006131140A1 PCT/EP2005/006695 EP2005006695W WO2006131140A1 WO 2006131140 A1 WO2006131140 A1 WO 2006131140A1 EP 2005006695 W EP2005006695 W EP 2005006695W WO 2006131140 A1 WO2006131140 A1 WO 2006131140A1
Authority
WO
WIPO (PCT)
Prior art keywords
plug
socket
wall portion
socket member
aperture
Prior art date
Application number
PCT/EP2005/006695
Other languages
French (fr)
Inventor
Vincent Regnier
Original Assignee
Fci
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fci filed Critical Fci
Priority to DE602005023539T priority Critical patent/DE602005023539D1/en
Priority to PCT/EP2005/006695 priority patent/WO2006131140A1/en
Priority to US11/921,592 priority patent/US7997940B2/en
Priority to JP2008515055A priority patent/JP4677031B2/en
Priority to CN2005800500355A priority patent/CN101194398B/en
Priority to EP05760786A priority patent/EP1891707B1/en
Priority to AT05760786T priority patent/ATE480886T1/en
Publication of WO2006131140A1 publication Critical patent/WO2006131140A1/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5219—Sealing means between coupling parts, e.g. interfacial seal
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/627—Snap or like fastening
    • H01R13/6271—Latching means integral with the housing
    • H01R13/6273—Latching means integral with the housing comprising two latching arms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2201/00—Connectors or connections adapted for particular applications
    • H01R2201/26—Connectors or connections adapted for particular applications for vehicles

Definitions

  • An electrical connector assembly for an airbaq ignitor is provided.
  • the present invention relates to electrical connectors for use with vehicle inflatable restraint systems, generally known as airbag systems. More particularly, the present invention relates to an electrical connector assembly for an airbag ignitor, the connector assembly comprising a socket member having a mating aperture, the mating aperture having a mating axis, a top wall portion, an internal side wall portion and a bottom wall portion, the side wall portion having a locking slot, the bottom wall portion having at least one pin contact, each pin contact extending from the bottom wall portion substantially parallel to the mating axis; and a plug member adapted for mating with the socket member by insertion in the mating aperture along the mating axis, the plug member comprising a plug body and a plug nose, this plug nose including a bottom surface having at least one socket contact aperture having a socket contact therein, said socket contact corresponding to a respective pin contact extending from the bottom wall portion of the mating aperture, and a resilient locking device adapted for engaging in the locking slot of the side wall portion of the socket member, the resilient
  • airbags have been mainly used to protect the driver and the passengers during an accident. Therefore, the airbags and their connectors are installed inside the passenger compartment.
  • an electrical connector assembly for an airbag ignitor as defined above, wherein the plug member further includes an annular gasket seal around the plug nose and under the plug body, said seal being adapted to seal the gap between the socket member and the plug member when the plug member is inserted into the socket member aperture.
  • Such an electrical connector assembly is particularly adapted to a harsh environment and more particularly protects the electrical connections from moisture.
  • Such a connector assembly is particularly adapted to pass the tests used by the automotive industry to qualify the equipments installed in the motor compartment.
  • Figure 1 is a perspective and cross-sectional view of the connector assembly according to the present invention, the socket member and the plug member being mated;
  • Figure 2 is a perspective view of the socket member of the connector assembly of Figure 1 ;
  • Figure 3 is a perspective view of the top of the plug member of the connector assembly of Figure 1 ;
  • Figure 4 is a perspective view of the bottom of the plug member of Figure 3;
  • Figure 5 is an axial sectional view of a detail of the gasket seal of the connector assembly according to the present invention.
  • Figure 6 is an axial sectional view of a detail of the gasket seal of Figure 5, the socket member and the plug member being mated.
  • Figure 1 shows a perspective and cross-sectional view of an electrical connector assembly 1.
  • the connector assembly 1 comprises a socket member 2 and a plug member 3.
  • the socket member 2 and the plug member 3 are adapted to mate together as shown in Figure 1.
  • the socket member 2, Figure 2 has a mating aperture 4.
  • the mating aperture 4 has roughly a cylindrical form with a mating axis 5, a top flat wall portion 6, an internal side wall portion 7 and a bottom wall portion 8.
  • the side wall portion 7 has an annular locking slot 9.
  • the locking slot 9 includes a top shoulder wall 10 that extends substantially perpendicular to the mating axis 5.
  • the bottom wall portion 8 has at least one pin contact 11. Each pin contact 11 extends from the bottom wall portion 8 substantially parallel to the mating axis 5.
  • the plug member 3, Figures 1 , 3 and 4 has a plug body 3a and a plug nose 3b.
  • the plug nose 3b includes socket contacts 12 disposed in socket contact apertures 13.
  • the socket contacts 12 are electrically connected to conductors of wiring 14.
  • Each socket contact 12 has a first end to receive a corresponding pin contact 11 and a second end for receiving a conductor of wiring 14.
  • the apertures 13 open onto a bottom surface 15 of the plug nose 3b.
  • the plug nose 3b also includes a resilient locking device having three resilient arms 17.
  • Each arm 17 obliquely extends upwardly from a region adjacent the bottom surface 15 of the plug nose 3b and is adapted for engaging the locking slot 9 of the side wall portion 7 of the mating aperture 4.
  • Each arm 17 includes an upper detent portion 19 that has a divergent portion 20 and an abutment portion 21.
  • the plug member 3 further includes an annular slot 22, Figures 1 and
  • the slot 22 extends between two shoulder portions 23, 24 that extend substantially perpendicular to the mating axis 5.
  • the top shoulder portion 23 is preferably formed by an annular bottom wall surface of an annular flange 23a of the plug body 3a, said bottom wall surface having an outer diameter substantially greater than the diameter of the mating aperture 4.
  • the external surface of the gasket seal 25 has one or more lips 28, 29.
  • the gasket seal 25 has a top lip 28 and two lower lips 29.
  • the top lip 28 is obliquely directed towards the top wall portion 6 of the socket member 2, and the lower lips 29 extend radially towards the internal side wall portion 7, so that, when the plug member 3 mates with the socket member 2 and is locked in position by the arms 17, the first lip 28 is pressed between the top wall portion 6 of the socket member 2 and the bottom wall surface 23 of the plug member 3 and spreads apart, providing an effective seal.
  • the lower lips 29 pressing against the side wall portion 7 provide an additional sealing effect, the seal 25 being pressed in the annular gap between the plug nose 3b and the side wall portion 7 of the socket member 2.

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)
  • Air Bags (AREA)

Abstract

An electrical connector assembly (1) for an airbag ignitor comprising: a) a socket member (2) having a mating aperture (4), an internal side wall portion (7) having a locking slot (9), and a bottom wall portion (8) having at least one pin contact (11) extending therefrom; and b) a plug member (3) adapted for mating with the socket member (2) by insertion in the mating aperture (4) and comprising a plug body (3a) and a plug nose (3b), the plug nose including (i) at least one socket contact aperture (13) for receiving a socket contact (12) corresponding to a respective pin contact (11), and (ii) a resilient locking device adapted for engaging in the locking slot (9) and locking the plug member in the socket member, wherein the plug member (3) includes an annular gasket seal (25) around the plug nose (3b) and under the plug body (3a) to seal the aperture between the socket member (2) and the plug member (3) when they mate.

Description

An electrical connector assembly for an airbaq ignitor.
FIELD OF THE INVENTION
The present invention relates to electrical connectors for use with vehicle inflatable restraint systems, generally known as airbag systems. More particularly, the present invention relates to an electrical connector assembly for an airbag ignitor, the connector assembly comprising a socket member having a mating aperture, the mating aperture having a mating axis, a top wall portion, an internal side wall portion and a bottom wall portion, the side wall portion having a locking slot, the bottom wall portion having at least one pin contact, each pin contact extending from the bottom wall portion substantially parallel to the mating axis; and a plug member adapted for mating with the socket member by insertion in the mating aperture along the mating axis, the plug member comprising a plug body and a plug nose, this plug nose including a bottom surface having at least one socket contact aperture having a socket contact therein, said socket contact corresponding to a respective pin contact extending from the bottom wall portion of the mating aperture, and a resilient locking device adapted for engaging in the locking slot of the side wall portion of the socket member, the resilient locking device including at least two resilient arms spreading apart from said plug nose towards said plug body, said arms, upon application of a force to separate the plug member from the socket member, locking the plug member in the socket member and preventing separation of the plug member from the socket member. BACKGROUND OF THE INVENTION A connector system of this type is disclosed, for example, in
US 5,876,231. Such a system is known as a non-serviceable connector as the plug member and the socket member cannot be separated when the locking device is engaged in the locking slot.
Up to now, airbags have been mainly used to protect the driver and the passengers during an accident. Therefore, the airbags and their connectors are installed inside the passenger compartment.
Now, it appears a need to install an airbag under the hood of a car to protect a pedestrian bumped by the car and projected on the hood. With the current cars, this pedestrian crashes onto the motor, which generates serious injuries. The goal of the airbag is therefore to provide a smooth area to protect the pedestrian from a collision with the motor. However, the environment under the hood is more difficult than the environment of the passenger compartment in terms of moisture, temperature, dust... Therefore, there is a need for a rugged connector equipment adapted to such environment with a high level of reliability.
SUMMARY OF THE INVENTION
It is accordingly an object of the invention to provide an electrical connector assembly for an airbag ignitor as defined above, wherein the plug member further includes an annular gasket seal around the plug nose and under the plug body, said seal being adapted to seal the gap between the socket member and the plug member when the plug member is inserted into the socket member aperture. Such an electrical connector assembly is particularly adapted to a harsh environment and more particularly protects the electrical connections from moisture. Such a connector assembly is particularly adapted to pass the tests used by the automotive industry to qualify the equipments installed in the motor compartment.
BRIEF DESCRIPTION OF THE DRAWINGS
The present invention is illustrated by way of example and not limitatively in the accompanying figures in which like reference numerals indicate similar elements and in which: Figure 1 is a perspective and cross-sectional view of the connector assembly according to the present invention, the socket member and the plug member being mated;
Figure 2 is a perspective view of the socket member of the connector assembly of Figure 1 ; Figure 3 is a perspective view of the top of the plug member of the connector assembly of Figure 1 ;
Figure 4 is a perspective view of the bottom of the plug member of Figure 3; Figure 5 is an axial sectional view of a detail of the gasket seal of the connector assembly according to the present invention; and
Figure 6 is an axial sectional view of a detail of the gasket seal of Figure 5, the socket member and the plug member being mated.
DESCRIPTION OF THE PREFERED EMBODIMENTS Figure 1 shows a perspective and cross-sectional view of an electrical connector assembly 1. The connector assembly 1 comprises a socket member 2 and a plug member 3. The socket member 2 and the plug member 3 are adapted to mate together as shown in Figure 1.
The socket member 2, Figure 2, has a mating aperture 4. The mating aperture 4 has roughly a cylindrical form with a mating axis 5, a top flat wall portion 6, an internal side wall portion 7 and a bottom wall portion 8.
The side wall portion 7 has an annular locking slot 9. The locking slot 9 includes a top shoulder wall 10 that extends substantially perpendicular to the mating axis 5.
The bottom wall portion 8 has at least one pin contact 11. Each pin contact 11 extends from the bottom wall portion 8 substantially parallel to the mating axis 5. The plug member 3, Figures 1 , 3 and 4, has a plug body 3a and a plug nose 3b.
The plug nose 3b includes socket contacts 12 disposed in socket contact apertures 13. The socket contacts 12 are electrically connected to conductors of wiring 14. Each socket contact 12 has a first end to receive a corresponding pin contact 11 and a second end for receiving a conductor of wiring 14. The apertures 13 open onto a bottom surface 15 of the plug nose 3b.
The plug nose 3b also includes a resilient locking device having three resilient arms 17. Each arm 17 obliquely extends upwardly from a region adjacent the bottom surface 15 of the plug nose 3b and is adapted for engaging the locking slot 9 of the side wall portion 7 of the mating aperture 4. Each arm 17 includes an upper detent portion 19 that has a divergent portion 20 and an abutment portion 21.
When the plug nose is inserted into the aperture 4, the arms 17 are flexed towards axis 5, then resiliently spread apart in the slot 9. Abutment portion 21 extends substantially perpendicular to the mating axis 5 and abuts shoulder portion 10 of locking slot 9, preventing separation of plug member 3 from socket member 2 when a force is applied for separating member 3 from member 2. The plug member 3 further includes an annular slot 22, Figures 1 and
5, in the top portion of the plug nose 3b. The slot 22 extends between two shoulder portions 23, 24 that extend substantially perpendicular to the mating axis 5.
The top shoulder portion 23 is preferably formed by an annular bottom wall surface of an annular flange 23a of the plug body 3a, said bottom wall surface having an outer diameter substantially greater than the diameter of the mating aperture 4.
The slot 22, the bottom of which is substantially parallel to the mating axis 4, maintains an annular gasket seal 25 in position. The annular gasket seal 25, Figures 5 and 6, has on its internal surface annular ridges 26, which are pressed against the bottom of slot 22, providing an effective seal.
The external surface of the gasket seal 25 has one or more lips 28, 29. In the illustrated preferred embodiment, the gasket seal 25 has a top lip 28 and two lower lips 29.
The top lip 28 is obliquely directed towards the top wall portion 6 of the socket member 2, and the lower lips 29 extend radially towards the internal side wall portion 7, so that, when the plug member 3 mates with the socket member 2 and is locked in position by the arms 17, the first lip 28 is pressed between the top wall portion 6 of the socket member 2 and the bottom wall surface 23 of the plug member 3 and spreads apart, providing an effective seal.
The lower lips 29 pressing against the side wall portion 7 provide an additional sealing effect, the seal 25 being pressed in the annular gap between the plug nose 3b and the side wall portion 7 of the socket member 2.

Claims

1. An electrical connector assembly (1) for an airbag ignitor, the connector assembly comprising: a) a socket member (2) having a mating aperture (4), the mating aperture (4) having a mating axis (5), a top wall portion (6), an internal side wall portion (7) and a bottom wall portion (8), the side wall portion (7) having a locking slot (9), the bottom wall portion (8) having at least one pin contact (11), each pin contact extending from the bottom wall portion (8) substantially parallel to the mating axis (5); and b) a plug member (3) adapted for mating with the socket member (2) by insertion in the mating aperture (4) along the mating axis (5), the plug member (3) comprising a plug body (3a) and a plug nose (3b), said plug nose including :
(i) a bottom surface (15) having at least one socket contact aperture (13) having a socket contact (12) therein, said socket contact corresponding to a respective pin contact (11) extending from the bottom wall portion (8) of the mating aperture (4), and
(ii) a resilient locking device adapted for engaging in the locking slot (9) of the side wall portion (7) of the socket member (2), locking the plug member in the socket member and preventing separation of the plug member from the socket member, wherein the plug member (3) further includes an annular gasket seal (25) around the plug nose (3b) and under the plug body (3a), said gasket seal (25) being adapted to seal the gap between the socket member (2) and the plug member (3) when the plug member is inserted into the socket member aperture.
2. The electrical connector assembly according to claim 1 , wherein the plug body (3a) comprises an annular bottom wall surface (23) around the plug nose (3b), said bottom wall surface being adapted to press the gasket seal (25) against the socket member (2) when the plug member (3) is inserted into the socket member aperture (4).
3. The electrical connector assembly according to claim 2, wherein said bottom wall surface (23) is adapted to press a top portion (28) of the gasket seal (25) against the top wall portion (6) of the socket member (2).
4. The electrical connector assembly according to claim 1, 2 or 3, wherein the gasket seal (25) comprises at least two radially extending lips (29) adapted to engage the side wall portion (7) of the aperture (4) of the socket member (2).
5. The electrical connector assembly according to claim 1 , 2 or 3, wherein the gasket seal (25) comprises a top lip (28) directed towards the top wall (6) of the socket member (2) such that said top lip spreads apart when the plug member (3) is inserted into the socket member (2), and at least one radially extending lip (29) sealing the gap between the plug nose (3b) and the internal side wall portion (7) of the aperture (4) of the socket member (2).
6. The electrical connector assembly according to any of claims 1 - 5, wherein the plug nose (3b) has an annular slot (22) under the plug body (3a) adapted to keep the gasket seal (25) in position when the plug member (3) is not inserted into the socket member aperture (4).
7. The electrical connector assembly according to any of claims 1 - 6, wherein the radially internal surface of the gasket seal (25) have annular ridges (26), which are pressed against the plug member (3).
8. The electrical connector assembly according to any of claims 1 - 7, wherein the resilient locking device includes at least two resilient arms (17) spreading apart from said plug nose (3b) towards said plug body (3a), said arms locking the plug member in the socket member preventing separation of the plug member from the socket member upon application of a force to separate the plug member (3) from the socket member (2).
PCT/EP2005/006695 2005-06-08 2005-06-08 An electrical connector assembly for an airbag ignitor WO2006131140A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
DE602005023539T DE602005023539D1 (en) 2005-06-08 2005-06-08 ELECTRICAL CONNECTOR ASSEMBLY FOR AN AIRBAG IGNITION DEVICE
PCT/EP2005/006695 WO2006131140A1 (en) 2005-06-08 2005-06-08 An electrical connector assembly for an airbag ignitor
US11/921,592 US7997940B2 (en) 2005-06-08 2005-06-08 Electrical connector assembly for an airbag ignitor
JP2008515055A JP4677031B2 (en) 2005-06-08 2005-06-08 Electrical connector assembly for airbag deployment
CN2005800500355A CN101194398B (en) 2005-06-08 2005-06-08 Electrical connector assembly for airbag igniter
EP05760786A EP1891707B1 (en) 2005-06-08 2005-06-08 An electrical connector assembly for an airbag ignitor
AT05760786T ATE480886T1 (en) 2005-06-08 2005-06-08 ELECTRICAL CONNECTOR ASSEMBLY FOR AN AIRBAG IGNITION DEVICE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2005/006695 WO2006131140A1 (en) 2005-06-08 2005-06-08 An electrical connector assembly for an airbag ignitor

Publications (1)

Publication Number Publication Date
WO2006131140A1 true WO2006131140A1 (en) 2006-12-14

Family

ID=35658896

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2005/006695 WO2006131140A1 (en) 2005-06-08 2005-06-08 An electrical connector assembly for an airbag ignitor

Country Status (7)

Country Link
US (1) US7997940B2 (en)
EP (1) EP1891707B1 (en)
JP (1) JP4677031B2 (en)
CN (1) CN101194398B (en)
AT (1) ATE480886T1 (en)
DE (1) DE602005023539D1 (en)
WO (1) WO2006131140A1 (en)

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WO2008129366A1 (en) * 2007-04-23 2008-10-30 Fci Sealable squib connector system
WO2009121153A1 (en) * 2008-03-31 2009-10-08 Whirlpool S . A . Mounting arrangement for an electric supply cable in a refrigeration compressor
WO2010026449A1 (en) * 2008-09-04 2010-03-11 Fci Sealable squib connector
EP2230731A1 (en) * 2009-03-20 2010-09-22 Amphenol-Tuchel Electronics GmbH Electric plug connector
DE102009003016A1 (en) * 2009-05-11 2010-11-18 Ifm Electronic Gmbh Circular connectors for industrial applications
EP2175341A3 (en) * 2008-10-10 2011-05-04 Mahle International GmbH Thermostatic valve
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DE102009003016A1 (en) * 2009-05-11 2010-11-18 Ifm Electronic Gmbh Circular connectors for industrial applications
DE102009003016B4 (en) * 2009-05-11 2019-11-21 Ifm Electronic Gmbh Circular connectors for industrial applications
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Also Published As

Publication number Publication date
CN101194398B (en) 2010-08-18
EP1891707B1 (en) 2010-09-08
ATE480886T1 (en) 2010-09-15
DE602005023539D1 (en) 2010-10-21
JP2008543021A (en) 2008-11-27
EP1891707A1 (en) 2008-02-27
JP4677031B2 (en) 2011-04-27
US7997940B2 (en) 2011-08-16
CN101194398A (en) 2008-06-04
US20090209138A1 (en) 2009-08-20

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